I am a big fan of wind power because as long as the Earth keeps turning, the wind is going to keep blowing. Plus wind turbines are available in all sizes: micro turbines that can be installed on the rooftop, and larger ones that can light up a few houses as well as really big ones that need to be installed in specialized wind farms or out in the ocean at a distance from the shore. The price should keep dropping with the increase in worldwide demand. I hope to have wind turbine on my house soon.
Solar power is another form of energy will not be exhausted till Judgement day! Current solar panel technology does not offer very high efficiencies, but the continued research should improve on that. There is not doubt solar will become ubiquitous in the coming decades.
Maybe the most environment friendly renewable energy source is hydroelectric power. It offers power as well as a way to use water for agriculture effectively.
I hope that I have been able to answer the question in a good way. Many thanks Shil19278 for your encouragement.